1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185be11e36f0eadc1bcd48076e2bdb90780d41fb8827d54eba611412f7630ff5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e879bd0-b403-4b9d-b44b-2a69118bad74.json and https://artists.proofprofile.net/proofs/artist/4e879bd0-b403-4b9d-b44b-2a69118bad74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wolves in the Back House (StoneBridge Remix)
Night Shift (Deadfriend Remix feat. Luna Melero)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6740363f14951a0fcfa6fe2a4bc7eaeb1e5183de8fe5e92914062089569aece. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52420474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf653b0ce608b5f9b95d601fb56cab2a15163f76f99736389b029c52db8742309. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2463488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddde76f3fe58f91ecd33a976de57bf77c0d8ae1cfc4fb4f9cb44056df0c3abe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2471682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe474e0274c469e5ad71cb1b56a881914fab3622840c6fefe2318eaf204ef4792. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2471683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06762185f39508367640da94fa6d6f09b8a9fdc337957dbd3decdd1a8d3d551b. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2482114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d56dca6910997c17524334fc4a56e557beeb05fc7c7234ddb6a3a8939732251. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2455618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab04ccbe35d5306bf4ef99363e6c1acb9ce8511ecb8d4a862e5c7f298f1129b5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2442248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3043f0e0cf973bc805e3dfdeab4fa3d1905a237cf3513b58a2614b4d9f5006. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2425021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa03789a6e4486c004b6ebe7bc2a7a2a92d4c1182e8f24a444d7722b7588422. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2507082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0c2c85a16d1573d1911c2d51926b2bbe6dbffae5dad690825373817d23d95b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB62534905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ed1d6a58fbc79f60449db791008de583cf995e1396eca95877c4dc8db9cc75. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFL2548609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe183f9bb4552ccd975b6399117d4eedf2a626692bb0560de46852c69565d9dd4. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ782519034.